Goal

• be able to launch a light weight gnome-session without gnome-shell (the full GUI shell), in X11 we launch mutter, basically in the session, no any docker, widgets, desktop background (in X11, this can be achieved by launching Xorg, and a window manager mutter, metacity)
• be able to enumerate top-level windows
• notifications
  • a window’s size, position, border, z-order was changed (refer X11 ConfigureNotify)
  • a window icon was changed
  • a window was created/destroyed, shown/hidden (refer X11 CreateNotify, DestroyNotify, MapNotify, UnmapNotify)
  • a window was minimized, maximized (X11 PropertyNotify)
  • a window became a top-level window (X11 ReparentNotify)
• Wayland equivalent for X11 _NET_WM_WINDOW_TYPE_DOCK 
• be able to capture image content of top-level windows. (better performance than X11)
• be able to get the icon image of a top-level window

Acceptance criteria

A list of verification conditions, successful functional tests, or expected outcomes in order to declare this story/task successfully completed.

• launch on a remote PC using Wayland a graphical application
• Being able to show the user only the specific app with no additional graphical elements, allowing him to experience "Seamless apps"